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Finding the Third Proportional to 64,880,868 and 90,707,814

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Solution

The third proportional to 64,880,868 and 90,707,814 is: 126,815,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,880,868 : 90,707,814 = 90,707,814 : x
  2. Step 2: Convert to fraction form
    64,880,868/90,707,814 = 90,707,814/x
  3. Step 3: Cross multiply
    64,880,868x = 90,707,814 × 90,707,814
  4. Step 4: Simplify right side
    64,880,868x = 8,227,907,520,658,596
  5. Step 5: Solve for x
    x = 8,227,907,520,658,596/64,880,868
  6. Step 6: Final answer
    x = 126,815,620.29

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.